DS18 Car Audio 8" Loudspeaker 480 Watt 8 Ohm Sealed Back PRO-GM8SE
A midrange driver is called upon to handle the most significant part of the audible sound spectrum, the region where the most fundamentals emitted by musical instruments and, most importantly, the human voice, lie. This region contains sounds which are the most familiar to the human ear, and where discrepancies from faithful reproduction are most easily observed. It is therefore paramount that a midrange driver of good quality be capable of low-distortion reproduction.
The PRO-GM series midranges whereas designed after the GEN Series and tweaked to perfection, these speakers embody the beginning of DS18. The clarity and depth of the acoustics these midranges produce is only comparable to that of "the big bang." The PRO-GM midranges feature black color steel baskets, Cloth edges, paper cones, and the option to choose between classic, bullet, or sealed back configuration. The PRO-GM line is one of the most sought out midrange in the industry for deal seeking audiophiles.
This listing includes:
(1) DS18 8" Sealed Back Loudspeaker PRO-GM8SE
Nominal Diameter: 8" (203.2mm)
Nominal Impedance: 8 Ohms
RMS Power Handling: 190 Watts
Max Power Handling: 580 Watts
Sensitivity (1w/1m): 96 dB
Frequency Response: 250Hz ~ 10kHz
Recommended Hi Pass Crossover: 350Hz
Voice Coil Diameter: 1.5" (38.1mm)
Voice Coil Former Material: Kapton
Winding Material: CCAW
Cone Material: Paper
Dust-cap Material: Paper
Surround Material: Cloth
Basket Material: Steel
Basket Color: Matte Black
Magnet Material: Ferrite
Magnet Weight: 30 Oz
THIELE & SMALL PARAMETERS:
Equivalent Volume: Vas - 1.25L / 0.44ft?
Free Air Resonance: Fs - 448Hz
Mechanical Factor: Qms - 8.336
Electrical Factor: Qes - 4.402
Total Factor: Qts - 2.88
Mechanical Mass: Mms - 6.922g
Mechanical Compliance: Cms - 0.018mm/N
BL Factor: BL - 5.29
Voice Coil Inductance: Le - 0.736mH
Cone Area: Sd - 221.67cm?
DC Resistance: Re - 6.3 Ohms
Overall Diameter: 8.26" (210mm)
Overall Depth: 3.46" (88mm)
Front Mount Baffle Cutout: 7.2" (183mm)
Mounting Depth: 3.22" (82mm)
Motor Diameter: 4.72" (120mm)
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